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SENT BY:Sunnyside Gold CorP 04-04-94 02:19PM 30338753104 303 832 S106 # 2 <br /> • . . I I <br /> AN <br /> Mechanical Jolning Driswpipe Flange • <br /> Mechanical joining to other piping materials—fittings Steel Pipe Adapter <br /> valves,tanks,pumps,etc.—may be accomplished VAth Flange Bolto <br /> with Ddscopipe flange adapters and metal back-u Section of <br /> flanges.Flanges are also used to connect lengths = Driecopipe <br /> Driscopipe together when butt fusion is impractical. =— <br /> f3utt Fuse <br /> Flange Adapters are pressure rated the same as the F� <br /> pipe.Flange adapters can be butt fused to the pipe as Adapter r <br /> outlined in the butt fusion section'. 0 to P <br /> Figure 1 illustrates the flanged method for joining <br /> polyethylene pipe to itself or to steel pipe.Although Won Metal Fla <br /> ductile iron is now used for the slip-on flanges,other <br /> materials are available from your local supplier. Joining Steel to MDPE <br /> Gaskets may be used between the polyethylene flange 2-Slip On <br /> adapters but it is not generally necessary.Sufficient M"If Flanges <br /> torque should be applied evenly to the bolts to prevent 2-Dri000pipe <br /> leaks,After initial installation and tightening of flanged FWW Adqftrs <br /> connections,it is a good practice to allow the <br /> connections to set for a period of time(usually a few <br /> hours).Then conduct a final tightening of the bolts, Wd Fuse Flange <br /> BoIM AdOOK to Pipe <br /> Joining NDPE to NDPE WWwut Pa.. neat Fusion <br /> FIsngeAdWW <br /> Butt Fusing s Moiled Flange Adapter to Pipe. <br /> 6 <br />